{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the charging rules for gas in a blockchain?","a":"Gas price fluctuations: The gas price  changes according to the market supply and demand relationship. Miners decide whether to bundle transactions based on the current gas price, while users need to adjust their transaction strategies according to the gas price."}]}],"pr":"3fc8ea08c02f801ce61cdcc95e4c923b7059c95aab4faa41293face39c4a2c27"}